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Table 5 Effects of different dietary starch sources on the free amino acid profile of the longissimus thoracis muscle of finishing pigs (mg/100 g)

From: Different dietary starch sources alter the carcass traits, meat quality, and the profile of muscle amino acid and fatty acid in finishing pigs

Items

Treatment

P-valuec

TS

CS

PS

ANOVA

Linear

Quadratic

Aspartate

3.24 ± 0.29b

4.14 ± 0.49b

6.90 ± 0.91a

0.001

< 0.001

0.001

Serine

35.85 ± 2.41

34.94 ± 1.05

36.78 ± 1.92

0.788

0.724

0.788

Glutamate

84.43 ± 4.68

88.30 ± 5.84

76.04 ± 3.66

0.207

0.239

0.207

Glycine

134.26 ± 2.22b

141.37 ± 4.85b

158.28 ± 5.53a

0.003

0.001

0.003

Alanine

340.53 ± 6.36b

350.86 ± 5.63ab

361.49 ± 6.68a

0.048

0.024

0.082

Tyrosine

41.47 ± 1.91

45.65 ± 1.72

45.28 ± 2.93

0.366

0.242

0.366

Cysteine

4.03 ± 0.15

4.03 ± 0.23

4.19 ± 0.19

0.797

0.553

0.797

Proline

40.53 ± 1.47

45.20 ± 3.89

39.64 ± 1.57

0.279

0.814

0.279

Asparagine

12.06 ± 0.48

12.09 ± 0.55

12.47 ± 0.68

0.857

0.612

0.857

Glutamine

155.29 ± 11.27

143.67 ± 11.24

166.84 ± 15.05

0.446

0.527

0.446

Valine

56.40 ± 2.46

55.22 ± 3.02

54.90 ± 2.82

0.922

0.700

0.922

Threonine

37.41 ± 1.90

38.41 ± 2.44

37.09 ± 1.81

0.895

0.913

0.895

Methionine

25.22 ± 1.34

25.03 ± 0.89

23.78 ± 2.07

0.768

0.499

0.768

Isoleucine

31.00 ± 1.33

31.33 ± 1.74

30.95 ± 2.12

0.986

0.984

0.986

Leucine

72.97 ± 4.37

70.20 ± 2.13

70.24 ± 3.99

0.827

0.592

0.827

Phenylalanine

44.51 ± 2.06

47.75 ± 1.96

48.80 ± 2.46

0.363

0.168

0.363

Lysine

66.66 ± 4.66

58.48 ± 4.07

70.12 ± 6.85

0.304

0.659

0.304

Histidine

25.13 ± 1.11

26.80 ± 1.67

24.10 ± 1.15

0.370

0.599

0.370

Arginine

15.82 ± 2.51

13.52 ± 1.09

13.97 ± 2.02

0.662

0.488

0.662

Tryptophan

162.12 ± 5.70

159.43 ± 11.77

157.02 ± 11.63

0.938

0.718

0.938

FAA

648.43 ± 6.67b

678.07 ± 10.90ab

696.77 ± 14.02a

0.017

0.004

0.017

TAA

1388.90 ± 19.58

1396.43 ± 15.56

1438.87 ± 22.17

0.165

0.078

0.167

  1. Values are mean ± SEM, n = 8
  2. a,bMeans in the same row with different superscripts differ (P < 0.05)
  3. Abbreviations: TS, tapioca starch; CS, corn starch; PS, pea starch; FAA, flavor amino acid; TAA, total amino acid
  4. cThe P values indicate the effects of different dietary starch sources with different amylose/amylopectin ratios by one-way ANOVA and polynomial contrasts- linear and quadratic analyses, respectively